buckley



no. 825,869. Patented myV ao, 189'9. M. G. r. BucKLEY.

PLASTEB BLOCK.

(Application med Aug. z, xoa.)

(K0 Model.)

' NI'rED STATES PATENT OFFICE.

MICHAEL G. F. BUCKLEY, OF NEW YORK, N. Y.

PLASTER-BLOC K.

SPECIFICATIONYforming' part of Letters Patent No. 625,869, datcd May 30, 1899.

Application filecl August 2117898. Serial No. 687,479. (No model.)

This invention relates to a plaster-block for w partitions and walls which possesses a 'superior keying-surface for the plaster` facing, deadens the sound, and offers Superior means for connecting it to the adjoining blocks and to the iron uprights by which the blocks are supported.

In the accompanying drawings, Figure 1 is a face view, partly insection, of an inside plaster-block provided with my improve'rnent.

Fig. 2, an end view thereof; Fig. 3, a topv view; Fig. 4, a section on line 4 4, Fig. 2; Fig. 5, a section on line 5 5, Fig. 1; Fig. 6, a section on line. 6 6,`.Fig. 1; Fig. 7, a face view of an 'oiitside plaster-block; Fig. 8, a top view thereof;l Fig..9, an end view; Fig. 10, a section on line 10 10, Fig. 7; and Fig. 11, a section on line 11 11, Fig. 7.

With particular reference to Figs. 1 to G, the plaster-block is made hollow, being composed of the two sides a a, which are connected at suitable intervals by the interior ribs a', all of course molded in one piece. The ribs a' are suitably spaced and are shown to be arranged vertically, though they may obviously run in a different direction. By the arrangement described there are, formed Within the plaster-block a number of interior air-spaces b, that extend through the entire block from end to endand serve not only to light'en the structure, but also to deaden the sound. Each of the sides a is provided with slots (L2 made, preferably, of elongated form and arranged transverselyto the air-spaces b, the slots extending completely through the sides a to open into such spaces. I prefer to arrange the slots (L2 in a staggered manner and make them somewhat longer than the width of the ribs a'. Thus some of the slots ot2 will communicate for their entire length with the air-spaces b, while others will communicate therewith only atv one or bothfends, according to the relative position of the ribs co' and thel slots. The slots ot2 constitute keygrooves foi` securely holding the mortar, ce-

ment, or other plaster facing with which the block is covered. The body of this facing will enter the key-grooves and will be also pressed in part through such grooves into the air-spaces b, so that an exceedingly firm attachinent for the facing is provided. At the upright edges the plaster-blooks are provided with tongues (L3 and grooves Q4, so that the adjacent blocks may be properly joined. Within these tongues and back of the grooves the block is provided with laterally-opening slots a5 for the reception of the iron ribs or uprights c, which serve to hold the block in place. These ribs will thus be entirely surrounded by the adjoiningblocks, Fig. 3, after the partition has been put up and will be out of reachof the mortar. t

In Figs. 7 to 11 the construction is shown to be adapted for heavy partitions or walls. Here an extra hollow center piececlis formed with interior air-spaces e. The sides f are connected to the center piece d by means of ribs, so as to form intervening air-spaces g. Each of the sides f is provided with the transverse key-grooves df', opening into the airspaces g in the manner and for the purpose hereinabove described with relation to the inside block, the entire block being, of course, molded in a single piece.

My improved plaster-block is strong, com- .paratively light, offers superior keying-faces,

and prevents the frost from strikin g through.

What I claim isi 1 A hollow plaster-block having inte'rior 'air-spaces and slotted sides, the slots of the sides opening into the interior air-spaces, substantially as specified.

2. A hollow plaster-block composed of two .slotted sides, and inwardly-extending ribs to formv interior air-spaces, into which the slots open, substantially as specified.

3. A hollow plaster-block having inte'rior air-spaces, sides having slots that open into the same, interlocking edges, and slots in the said edges for receiving uprights, substantially as specified.

Sgned by me, at New York city, New York, this 28th day of July, 1898.

MICHAEL G; F. BUCKLEY.

Witnesses:

F. v. BRIESEN, WILLIAM MILLER.

IOO 

